mirror of
https://github.com/adulau/aha.git
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279 lines
7.2 KiB
C
279 lines
7.2 KiB
C
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/*
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* Hardware definitions for Palm Tungsten|E2
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*
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* Author:
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* Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
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*
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* Rewrite for mainline:
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* Marek Vasut <marek.vasut@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* (find more info at www.hackndev.com)
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*
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*/
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/pwm_backlight.h>
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#include <linux/gpio.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <mach/audio.h>
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#include <mach/palmte2.h>
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#include <mach/mmc.h>
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#include <mach/pxafb.h>
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#include <mach/mfp-pxa25x.h>
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#include "generic.h"
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#include "devices.h"
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/******************************************************************************
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* Pin configuration
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******************************************************************************/
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static unsigned long palmte2_pin_config[] __initdata = {
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/* MMC */
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GPIO6_MMC_CLK,
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GPIO8_MMC_CS0,
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GPIO10_GPIO, /* SD detect */
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GPIO55_GPIO, /* SD power */
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GPIO51_GPIO, /* SD r/o switch */
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/* AC97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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/* PWM */
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GPIO16_PWM0_OUT,
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/* LCD */
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GPIO58_LCD_LDD_0,
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GPIO59_LCD_LDD_1,
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GPIO60_LCD_LDD_2,
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GPIO61_LCD_LDD_3,
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GPIO62_LCD_LDD_4,
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GPIO63_LCD_LDD_5,
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GPIO64_LCD_LDD_6,
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GPIO65_LCD_LDD_7,
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GPIO66_LCD_LDD_8,
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GPIO67_LCD_LDD_9,
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GPIO68_LCD_LDD_10,
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GPIO69_LCD_LDD_11,
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GPIO70_LCD_LDD_12,
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GPIO71_LCD_LDD_13,
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GPIO72_LCD_LDD_14,
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GPIO73_LCD_LDD_15,
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GPIO74_LCD_FCLK,
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GPIO75_LCD_LCLK,
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GPIO76_LCD_PCLK,
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/* GPIO KEYS */
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GPIO5_GPIO, /* notes */
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GPIO7_GPIO, /* tasks */
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GPIO11_GPIO, /* calendar */
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GPIO13_GPIO, /* contacts */
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GPIO14_GPIO, /* center */
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GPIO19_GPIO, /* left */
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GPIO20_GPIO, /* right */
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GPIO21_GPIO, /* down */
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GPIO22_GPIO, /* up */
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/* MISC */
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GPIO1_RST, /* reset */
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};
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/******************************************************************************
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* SD/MMC card controller
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******************************************************************************/
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static int palmte2_mci_init(struct device *dev,
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irq_handler_t palmte2_detect_int, void *data)
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{
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int err = 0;
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/* Setup an interrupt for detecting card insert/remove events */
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err = gpio_request(GPIO_NR_PALMTE2_SD_DETECT_N, "SD IRQ");
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if (err)
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goto err;
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err = gpio_direction_input(GPIO_NR_PALMTE2_SD_DETECT_N);
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if (err)
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goto err2;
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err = request_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N),
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palmte2_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
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IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
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"SD/MMC card detect", data);
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if (err) {
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printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
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__func__);
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goto err2;
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}
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err = gpio_request(GPIO_NR_PALMTE2_SD_POWER, "SD_POWER");
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if (err)
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goto err3;
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err = gpio_direction_output(GPIO_NR_PALMTE2_SD_POWER, 0);
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if (err)
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goto err4;
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err = gpio_request(GPIO_NR_PALMTE2_SD_READONLY, "SD_READONLY");
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if (err)
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goto err4;
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err = gpio_direction_input(GPIO_NR_PALMTE2_SD_READONLY);
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if (err)
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goto err5;
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printk(KERN_DEBUG "%s: irq registered\n", __func__);
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return 0;
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err5:
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gpio_free(GPIO_NR_PALMTE2_SD_READONLY);
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err4:
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gpio_free(GPIO_NR_PALMTE2_SD_POWER);
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err3:
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free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);
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err2:
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gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);
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err:
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return err;
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}
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static void palmte2_mci_exit(struct device *dev, void *data)
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{
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gpio_free(GPIO_NR_PALMTE2_SD_READONLY);
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gpio_free(GPIO_NR_PALMTE2_SD_POWER);
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free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);
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gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);
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}
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static void palmte2_mci_power(struct device *dev, unsigned int vdd)
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{
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struct pxamci_platform_data *p_d = dev->platform_data;
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gpio_set_value(GPIO_NR_PALMTE2_SD_POWER, p_d->ocr_mask & (1 << vdd));
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}
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static int palmte2_mci_get_ro(struct device *dev)
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{
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return gpio_get_value(GPIO_NR_PALMTE2_SD_READONLY);
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}
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static struct pxamci_platform_data palmte2_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.setpower = palmte2_mci_power,
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.get_ro = palmte2_mci_get_ro,
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.init = palmte2_mci_init,
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.exit = palmte2_mci_exit,
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};
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/******************************************************************************
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* GPIO keys
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******************************************************************************/
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static struct gpio_keys_button palmte2_pxa_buttons[] = {
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{KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" },
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{KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" },
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{KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" },
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{KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" },
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{KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" },
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{KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" },
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{KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" },
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{KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" },
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{KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" },
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};
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static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
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.buttons = palmte2_pxa_buttons,
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.nbuttons = ARRAY_SIZE(palmte2_pxa_buttons),
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};
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static struct platform_device palmte2_pxa_keys = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &palmte2_pxa_keys_data,
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},
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};
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/******************************************************************************
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* Backlight
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******************************************************************************/
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static struct platform_pwm_backlight_data palmte2_backlight_data = {
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.pwm_id = 0,
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.max_brightness = PALMTE2_MAX_INTENSITY,
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.dft_brightness = PALMTE2_MAX_INTENSITY,
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.pwm_period_ns = PALMTE2_PERIOD_NS,
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};
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static struct platform_device palmte2_backlight = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &pxa25x_device_pwm0.dev,
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.platform_data = &palmte2_backlight_data,
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},
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};
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/******************************************************************************
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* Framebuffer
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******************************************************************************/
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static struct pxafb_mode_info palmte2_lcd_modes[] = {
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{
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.pixclock = 77757,
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.xres = 320,
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.yres = 320,
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.bpp = 16,
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.left_margin = 28,
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.right_margin = 7,
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.upper_margin = 7,
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.lower_margin = 5,
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.hsync_len = 4,
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.vsync_len = 1,
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},
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};
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static struct pxafb_mach_info palmte2_lcd_screen = {
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.modes = palmte2_lcd_modes,
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.num_modes = ARRAY_SIZE(palmte2_lcd_modes),
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
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};
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/******************************************************************************
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* Machine init
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******************************************************************************/
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static struct platform_device *devices[] __initdata = {
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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&palmte2_pxa_keys,
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#endif
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&palmte2_backlight,
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};
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static void __init palmte2_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
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set_pxa_fb_info(&palmte2_lcd_screen);
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pxa_set_mci_info(&palmte2_mci_platform_data);
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pxa_set_ac97_info(NULL);
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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MACHINE_START(PALMTE2, "Palm Tungsten|E2")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.boot_params = 0xa0000100,
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.map_io = pxa_map_io,
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.init_irq = pxa25x_init_irq,
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.timer = &pxa_timer,
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.init_machine = palmte2_init
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MACHINE_END
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